GH3030
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Description
Scope of supply for Aviation Group
Forgings, round rods, steel plates, rings, seamless pipes, steel plates/steel belts, wire welding materials, welcome to inquire!
1. Introduction to GH3030 Materials
GH3030 solid solution reinforced high-temperature alloy is an early developed 80Ni-20Cr solid solution reinforced high-temperature alloy. It has simple chemical composition and has satisfactory thermal strength and high plasticity below 800℃. It also has good antioxidant, thermal fatigue, cold stamping and welding process performance. After solid solution treatment, the alloy is single-phase austenite, and the structure is stable during use. The main products are cold-rolled thin plates, which can also supply deformed products such as bars, rings, wires and pipes. Mainly used for turbine engine combustion chamber components that operate below 800°C and other high-temperature components that require oxidation resistance below 1100°C but bear very small loads. [1] GH3030 has strong hot processing and cold processing properties, and is used to make various chemical equipment and supporting accessories.
GH3030 standard implementation
GB/T14992 “Classification and Grade of High-Temperature Alloys and Intermetallic Compounds”
GB/T14994 “High-Temperature Alloy Cold-Trawn Rods”
GB/T14995 “High-Temperature Alloy Hot Rolled Plate”
GB/T14996 “High temperature alloy cold-rolled thin plate”
GB/T15062 “General-purpose high-temperature alloy pipe”
GJB1952A “Code for cold-rolled thin plates for high-temperature alloys for aviation
” GJB2612 “Code for cold-drawing of high-temperature alloys for welding”
GJB2611A “Code for Cold-pulled Rods for High Temperature Alloys for Aviation”
GJB3317A “Code for Hot Rolled Plate for Aviation”
2. Chemical components
| alloy | % | In | Cr | Fe | C | Mn | And | S | P | Al | Of |
| GH30 | Minimum value | margin | 19.00 | – | – | – | – | – | – | – | 0.15 |
| Maximum value | 22.00 | 1.50 | 0.12 | 0.70 | 0.80 | 0.020 | 0.030 | 0.15 | 0.35 |
3. Physical properties of GH3030
| density | Melting point | Thermal conductivity | Specific heat capacity | Elastic modulus | Resistivity | Coefficient of linear expansion |
| g / cm3 | ℃ | L/(W/M • ℃) | J/kg•℃ | GPa | μΩ•m | a/10-6℃-1 |
| 8.4 | 1374-1420 | 15.1(100℃) | 565.2 | 224 | 1.09 | 12.8(20~100℃) |
GH3030 solid solution state, mechanical properties of alloy at room temperature:
| Alloy status | Tensile strength σb (Mpa) |
Elongation A5 % |
| Solid solution state | ≥785 | ≥35 |
IV. GH3030 material characteristics
80Ni-20Cr solid solution reinforced high-temperature alloy has simple chemical composition, satisfactory thermal strength and high plasticity below 800 °C, and has good antioxidant, thermal fatigue, cold stamping and welding process properties. After solid solution treatment, the alloy is single-phase austenite, and the structure is stable during use.
The metallographic structure of GH3030 is a single-phase austenite structure with a small amount of TiC and Ti(CN) between them.
V. GH3030 application fields
1. Mainly used for combustion chamber components of turbine engines below 800 ℃
2. Other high-temperature components below 1100 ℃ require antioxidant but withstand very small loads
3. Used to make mobile burning frames in enamel furnaces
4. GH3030 has strong hot processing and cold processing properties, and is used to make various chemical equipment and supporting accessories.
